架构师训练营第三周作业

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发布于: 2020 年 06 月 24 日
1. 请在草稿纸上手写一个单例模式的实现代码，拍照提交作业。完成情况：DCL双检查锁机制的单例模式（Java）
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2. 请用组合设计模式编写程序，打印输出图 1 的窗口，窗口组件的树结构如图 2 所示，打印输出示例参考图 3。﻿
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完成情况如下：
1、概念
组合模式（Composite Pattern）将对象组合成树形结构以表示“部分-整体”的层次结构。组合模式使得用户可以使用一致的方法操作单个对象和组合对象。
组合关系与聚合关系的区别：
（1）组合关系：在古代皇帝三宫六院，贵妃很多，但是每一个贵妃只属于皇帝。
（2）聚合关系：一个老师有很多学生，但是每一个学生又属于多个老师。
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Container.java
public abstract class Container {
    private String name;
    private String type;
    public Container(String name,String type) {
        super();
        this.name = name;
        this.type=type;
    }
    public abstract void add(Container form);
    public abstract void remove(Container form);
    public abstract void display(int depth);
    public String getName() {
        return name;
    }
    public void setType(String type) {
        this.type = type;
    }
    public String getType() {
        return type;
    }
    public void setName(String name) {
        this.name = name;
    }
}
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Control.java
public class Control extends Container {
    public Control(String name,String type) {
        super(name,type);
    }
    @Override
    public void add(Container form) {
    }
    @Override
    public void remove(Container form) {
    }
    @Override
    public void display(int depth) {
        for (int i = 0; i < depth; i++) {
            System.out.print(" ");
        }
        System.out.println("print "+getType()+ "("+getName()+")");
    }
}
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Frame.java
public class Frame extends Container {
    private List<Container> children = new ArrayList<>();
    public Frame(String name,String type) {
        super(name,type);
    }
    @Override
    public void add(Container form) {
        children.add(form);
    }
    @Override
    public void remove(Container form) {
        children.remove(form);
    }
    @Override
    public void display(int depth) {
        for (int i = 0; i < depth; i++) {
            System.out.print(" ");
        }
        System.out.println("print "+getType()+ "("+getName()+")");
        for (Container form : children) {
            form.display(depth + 2);
        }
    }
}
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Winform.java
public class Winform extends Container {
    private List<Container> children = new ArrayList<>();
    public Winform(String name,String type) {
        super(name,type);
    }
    @Override
    public void add(Container form) {
        children.add(form);
    }
    @Override
    public void remove(Container form) {
        children.remove(form);
    }
    @Override
    public void display(int depth) {
        for (int i = 0; i < depth; i++) {
            System.out.print(" ");
        }
        System.out.println("print "+getType()+ "("+getName()+")");
        for (Container container : children) {
            container.display(depth + 2);
        }
    }
}
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Main.java
public class Main {
    public static void main(String[] args) {
	// write your code here
        Winform winForm = new Winform("Windows窗口","Windows");
        Frame frame = new Frame("FRAME1","Frame");
        
        Control lflogo = new Control("LOGO","Picture");
        Control lflogin = new Control("登录","Button");
        Control lfregister = new Control("注册","Button");
        Control cUname = new Control("用户名","Label");
        Control cUnameVal = new Control("用户名","TextBox");
        Control cPass = new Control("密码","Label");
        Control cPassVal = new Control("密码","TextBox");
        Control remLabel = new Control("记住用户名","Label");
        Control remChkBox = new Control("记住用户名","CheckBox");
        Control linkLabel = new Control("忘记密码","LinkLabel");
         
        winForm.add(lflogo);
        winForm.add(lflogin);
        winForm.add(lfregister);
        winForm.add(frame);
        frame.add(cUname);
        frame.add(cUnameVal);
        frame.add(cPass);
        frame.add(cPassVal);
        remLabel.add(remChkBox);
        frame.add(remLabel);
        frame.add(linkLabel);
         
        winForm.display(0);
    }
}
程序输出如下：
"D:\Program Files\Java\jdk1.8.0_111\bin\java.exe" -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:26376,suspend=y,server=n -javaagent:C:\Users\L\AppData\Local\JetBrains\IntelliJIdea2020.1\captureAgent\debugger-agent.jar -Dfile.encoding=UTF-8 -classpath "D:\Program Files\Java\jdk1.8.0_111\jre\lib\charsets.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\deploy.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\access-bridge-64.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\bcprov-jdk15on-1.54.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\cldrdata.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\dnsns.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\jaccess.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\javassist-3.12.0.GA.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\jfxrt.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\local_policy.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\localedata.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\nashorn.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\sunec.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\sunjce_provider.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\sunmscapi.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\sunpkcs11.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\xom-1.2.10.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\zipfs.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\javaws.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\jce.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\jfr.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\jfxswt.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\jsse.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\management-agent.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\plugin.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\resources.jar;D:\Program Files\Java\jdk1.8.0_111\jre\lib\rt.jar;D:\WorkSpace\Private\Java\架构练习\dev\out\production\dev;D:\Program Files\ideaIU-2020.1.2.win\lib\idea_rt.jar" com.company.Main
Connected to the target VM, address: '127.0.0.1:26376', transport: 'socket'
print Windows(Windows窗口)
  print Picture(LOGO)
  print Button(登录)
  print Button(注册)
  print Frame(FRAME1)
    print Label(用户名)
    print TextBox(用户名)
    print Label(密码)
    print TextBox(密码)
    print Label(记住用户名)
    print LinkLabel(忘记密码)
Disconnected from the target VM, address: '127.0.0.1:26376', transport: 'socket'
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Process finished with exit code 0
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